I, too, am interested in these stats. If a calibrated backpack usually sprays roughly 4,000 sq. ft., this should do somewhere in the range of 9-10k. Is that right? I've considered buying something like this or a small skidmount. The biggest account I have is just under an acre, but most are between 12-25k square feet. Currently I sub them all out, but if I can get something that is productive for me to use and keep my costs around $3 or less per 1000sq. ft. then I am all for it!